A.德佛里斯B.科侖斯C.切爾馬克D.魏斯曼E.摩爾根
A.1℃~3℃ B.0.1℃~0.3℃ C.0.3℃~0.6℃ D.0.5℃~1℃
A.減弱 B.增強 C.紅移 D.藍移
A.等于5.6 B.大于5.6 C.小于5.6 D.小于7